According to the air traffic rules，you should your mobile phone before boarding．
| A．switch over | B．switch on | C．switch off | D．switch round |
－Are you______with doing a lot of homework every day?
－Sometimes I am. But as a student, we have to do so at present.
| A．satisfied | B．encouraged | C．pleased | D．bored |
－What are you going to do this afternoon?
－ I’ll probably go for a walk later on______it stays fine.
| A．so long as |
B．as far as |
C．even if |
D．as if |
.－Do you like to buy the product an advertisement______on TV?
－Not really. I think it's better to look before we leap.
| A．advises | B．suggests | C．announces | D．praises |
--- Good morning．How much should I pay for these books _________ to Alabama?
--- Hm, about ten dollars.
| A．to be sent | B．being sent | C．having seen | D．to have been sent |
--- May I smoke here?
--- If you ________, do it in the smoking section.
| A．need | B．must | C．may | D．will |